Trolley-head and current-collector.



PATENTED APR. 17, 1906.

J. E. GREENWOOD. TROLLEY HEAD AND CURRENT COLLECTOR.

APPLICATION FILED OCT. 31. 1904.

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v TROLLEY HEAD AND CURRENT COLLECTOR.

APPLICATION FILED OCT. 31. 1904.

2 SHEETS-SHEET 2.

? ITEI) STATES PATENT OFFICE.

JOHN E. GREENWOOD, OF UTIOA, NEW YORK.

Specification of Letters Patent.

l Patented April 17,1906.

Application filed October 31, 1904. Serial No. 280,654.

To all whom, it may concern.-

Be it known that I, JOHN E. GREENWOOD, a citizen of the United States, residing at Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Trolley Heads and Current-Collectors, of which the following is r a specification, reference being had therein to the accompanying drawings.

My invention relates to an improved trolley-head and currentcollector; and I declare that the following is a full, clear, concise, and exact description thereof, sufficient to enable one skilled in the art to make and use the same, reference being had to the accompanying drawings, in which like letters refer to like parts throughout.

My invention relates to that class of trol= leywheels wherein a plurality of currentcollectors are employed suitably mounted on a single head and as illustrated in one form in the accompanying drawings, which Show one plan of construction, with modifications of the same. It will be understood that other modifications may be employed and mechanical changes made without departing from the spirit and scope of my invention.

In the drawings, Figure 1 is a side View of the device. Fig. 2 is an end view, and Fig. 3 is a top view. Figs. 4, 5, 6, and 6 are perspective views of parts shown in Fig. 1. Fig. 7 illustrates a different form of my invention, Fig. 8 being an end view of the same, Figs. 9 and 10 perspective views of portions thereof, and Fig. 11 a plan view of the parts shown in Figs. 9 and 10.

Referring to the drawings in detail, A represents the head of the trolley-pole, which is of ordinary construction and forked at its upper end, as shown at A.

B is a trolley-head to be supported in the part A by pin B and held by cotter-pins b. The part B is made from a single piece of metal, which is cut out in the form of a blank, having the ends of the blank turned up, each in a semicircular fashion to form the circular shank B, which has therethrough the opening 1) to receive a spring, as will be shown, and having the opposite or head portion suitably fashioned to be supported in the trolley-pole.

O is a spring member formed of a single piece in one construction, as shown in Fig. 4, which is pierced centrally to rest on the shaft B and supported thereon on the washer or collar 0. The ends of part 0 are turned back, so as to provide a mounting for the pin (1, which supports the trolley-wheel D, cotter-pins d passing through the pin (1. The part O is forked at each end, Fig. 4, and Where the ends are turned to furnish the bearing for the trolley-Wheel the outer edge of the forked portion is cut away, as at c, to receive the cotter-pin d and keep the shank or pin d from turning, the Wheel being supported between the bifurcated members at each end. Out of the blank from which C is formed I cut two uprights C on each side, Fig. 4. Through the opening 6 in shank B I pass a flat spring E, each end of which lies between the adjacent uprights O, and the office of which is to keep the wheel-supporting member O in normal alinement with the trolley head and pole. Above the spring E, I place collar or washer E and pass cotter-pin e through the head of the shank.

Parts F represent current conveying means, which I show in the form of springs having one end ierced to receive the pin d therethrough and having a lateral upset at the other end for mounting the member on the trolley-wheel-supporting member O.

In order that the member C and the trolleywheels may be supported normally horizontally, I provide a spring member Or, one end of which is fixed on the lower end of the member B and the other end of which extends to and is supported on the pole or pole-head A in connecting means, (illustrated at g.)

In Fig. 7 I show a modified construction wherein the member O is comprised of two parts, each of which is supported on shank B. These parts of member O are constructed of spring material having a returnbend fashioned at the outer end to provide a bearing for the pin d, as in the other construction, and at the inner end its parts are somewhat separated and pierced, so as to be supported on the shaft in proper position. As in the other case, I provide spring member E and the other parts providing the mounting of the samethat is, the opening I) in the shank of the head and the upsets C from the member O.

Having described .my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a trolley-head, a plurality of current collectors supporting means therefor comprising spring members pivotally mounted on the trolley-pole head, a spring engaging the trolley-pole head and the said supporting means retaining the collectors in normal alinement, substantially as shown.

2. In a trolleyhead, a plurality of currentcollectors, supporting means therefor comprising spring members pivotally mounted on the pole-head, spring means engaging the trolley-pole head and the said supporting means retaining the latter in normal alinement with the trolley-pole head, substantially as shown.

3. In a device of the character described, doubled spring members adapted to yield vertically and provided with means for supporting a plurality of trolley-wheels and with means for pivotally mounting the said mem bers relatively to the trolley-pole.

1. In a device of the character described comprising a plurality of current-collectors and spring-plate harp members supporting the same, a member supporting the said harp members on the trolley-pole, the said member comprising head and shank fashioned out of sheet metal providing means for supporting one end on the trolley-pole and pivotally supporting the harp members on the other portion, and spring means connecting the latter portion and the harp members normally maintaining the current-collectors in alinement, substantially as shown.

5. In a device of the characterdescribed, flat spring members comprising current-collector-supporting means, pivotal connection of the said members on the trolley-head, spring means normally holding the members in alinement with the pole, and a spring member normally holding the current-collectors in substantially a horizontal position, substantially as described.

6. In a device of the character described, a current-collector, a spring-support for a collector having at one end a return-bend. for the mounting of the collector and at the other end adapted to be supported on the trolleyhead and adapted by its mounting for horizontal play thereon, spring connection between the said member and the trolley-head limiting such play, spring connection between the trolley-head and the pole normally retaining the collector supporting member in substantially horizontal position, substantially as described.

7. In a device of the character described comprising a plurality of current-collectors, pivotally-mounted spring-supports for the collectors, means mounted in connection with the supports maintaining the same in normal horizontal and vertical position, substantially as shown.

8. In a device of the character described, trolley-harps fashioned of spring metal having return-bends at the outer ends for the mounting of the current-collectors and having spring members in contact with the current-collectors and mounted on the harp, a shank supported on the trolley-head provided for supporting the harps and spring means connecting the shank and the harps, the said means being mounted on the shank an o'llset being provided on the harp for en gaging said spring means, substantially as shown.

9. In a device of the character described, trolleyharpsfashioned of spring metal having return-bends at the outer ends for the mounting of current-collectors and having spring connection between the harps and the trolley-pole head, the said connection comprising a flat spring passing through the trolley-pole head and engaging oflsets on the harps, substantially as shown.

10. In a device of the character described, current-collector-supporting members of flat metal each doubled upon itself, the ends being adapted for pivotal mounting on the trolley-pole head and providing a ournal at the return-bend thereof for the support of the collector-journal, substantially as described.

1].. In a device of the character described, harps formed of double metal plates adapted for the pivotal mounting of the ends on the trolley-pole head and having bearings for the support of current-collectors, and a spring member passing through the trolley pole head and engaging the harp members to limit the horizontal movement of the latter on the trolley-pole head, substantially as described. 12. In a device of the character described spring-plates supporting the current-collectors and. supported on the trolley-pole head to swing horizontally and to swing with their mounting vertically on the trolley-pole, and curren t-collectors, substantially as described.

13. In a trolley-head comprising a plurality of current-collectors having spring-supporting means therefor mounted on the polehead, a spring engaging the trolley-pole head and the said supporting means retaining the collectors in normal alinement with each other and with the trolley pole, substantially as shown.

14. In a device of the character described, flat metal harps vertically resilient and mounted to swing horizontally, in combination. with means to limit the said horizontal swing, substantially as described.

In testimony whereof I aHiX my signature in presence of two witnesses.

JOHN E. GREENWOOD.

Witnesses E. T. DE Groner. H. M. LovE.

IIO 

